Numbers 9:21-25

If sometimes the cloud remained from evening until morning, when the cloud was lifted in the morning they would set out; or if it remained in the daytime and at night, whenever the cloud was lifted, they would set out.

Whether it was two days, a month, or a year that the cloud lingered over the tabernacle, staying above it, the sons of Israel remained camped and did not set out; but when it was lifted, they did set out.

At the command of the Lord they camped, and at the command of the Lord they set out; they did what the Lord required, in accordance with the command of the Lord through Moses.